Answer:
(0, -3), (2, 1)
Step-by-step explanation:
Solve this by solving for the first variable in one of the equations, then substitute the result into the other equation.
Answer:
she'll use in total 1/5 + 3/5 = 4/5 from her 16 pounds of peanuts so 4/5 * 16 = 12.8
Not entirely sure about my answer
Answer:
1/3
Step-by-step explanation:
1/4×3/2×8/9
Rewriting
8/4 * 3/9 *1/2
Simplify
2 * 1/3 * 1/2
Rewriting
2/2 * 1/3
1 * 1/3
1/3
Answer:
1:
we have a rule that is (n-2)×180
while n = number of sides
2:
exterior angle of a polygon = 360 ÷ number of sides
so 360÷25=14.4
3:
octagon is 8 side, so as we said: (8-2)×180 = 1080
4:
lets make an equation, we know that (n-2)×180 = the sum
so (x-2)×180=720
180x -360 = 720
180x = 1080
x=6